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Date: Tue, 2 Jan 2007 14:32:27 -0800 (PST)
From: "Patrick Linskey (JIRA)" <jira@apache.org>
To: open-jpa-dev@incubator.apache.org
Subject: [jira] Commented: (OPENJPA-94) Allow MappingTool and
 persistence.xml to support drop-create for database schema
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    [ http://issues.apache.org/jira/browse/OPENJPA-94?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12461857 ] 

Patrick Linskey commented on OPENJPA-94:
----------------------------------------

One downside of dropping and re-creating schemas is the latency of the operation. I think that it'd be more useful to have an option to automatically delete all records from all mapped tables. This option could potentially also work lazily if a full class list is not available up-front -- OpenJPA could issue a delete statement when a new ClassMapping is first initialized.

> Allow MappingTool and persistence.xml to support drop-create for database schema
> --------------------------------------------------------------------------------
>
>                 Key: OPENJPA-94
>                 URL: http://issues.apache.org/jira/browse/OPENJPA-94
>             Project: OpenJPA
>          Issue Type: New Feature
>            Reporter: Shay Banon
>
> Currently, in the persistence context, one can define:
> <property name="openjpa.jdbc.SynchronizeMappings" value="buildSchema" />
> Which causes OpenJPA to build the database schema based on the mapping defined. Currently, there is no way to define it to drop tables if they exists before creating the database schema. This is very useful for tests that drop (if exists) and creates new tables for each test.

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